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Cephalonia is just to the east of a major tectonic fault, where the European plate meets the Aegean plate at a slip boundary. This is similar to the more famous San Andreas Fault. There are regular earthquakes along this fault.
A series of four earthquakes hit the island in August 1953, and caused major destruction, with virtually every house on the island destroyed. The third and most destructive of the quakes took place on August 12, 1953 at 09:24 UTC (11:24 local time), with a magnitude of 7.3 on the Richter scale. Its epicentre was directly below the southern tip of Cephalonia, and caused the entire island to be raised 60 cm higher, where it remains, with evidence in water marks on rocks around the coastline.
This 1953 disaster caused huge destruction, with only regions in the north escaping the heaviest tremors and houses there remaining intact. Damage was estimated to run into tens of millions of dollars, equivalent to billions of drachmas, but the real damage to the economy occurred when residents left the island. An estimated 100,000 of the population of 125,000 left the island soon after, seeking a new life elsewhere.
Recent history
The forest fire of the 1990s caused damage to the island's forests and bushes, especially a small scar north of Troianata, and a large area of damage extending from Kateleios north to west of Tzanata, ruining about 30 square kilometres of forest and bushes and resulting in the loss of some properties. The forest fire scar was visible for some years.
In mid-November 2003, an earthquake measuring 5.3 on the Richter scale caused minor damage to business, residential property, and other buildings in and near Argostoli. Damages were in the €1,000,000 range.
On the morning of Tuesday September 20, 2005, an early-morning earthquake shook the south-western part of the island, especially near Lixouri and its villages. The earthquake measured 4.9 on the Richter scale, and
